Add README file

Author: darrell24015

Using-Adventurelib/README.md

@@ -6,4 +6,19 @@ An adaptation of the Zombie-House game using the Adventurelib library.
 
 Full documentation of Adventurelib is [here](https://adventurelib.readthedocs.io/).
 
-This library contains several classes that can be used to create objects in the game such as rooms, characters and items to be placed into the player's inventory.
+This library contains classes that can be used to create objects in the game such as rooms and items to be placed into the player's inventory.
+
+**New Concepts:**
+
+* Class
+  1. Room()
+  2. Item()
+  3. Bag()
+
+* Functions
+  1. start()
+  2. say()
+
+* Decorators
+  1. @when
+